Inclinometer



Feb. 1o. 1925. 1,525,255

E. TAYLOR ET AL IN-CLINOMETER Filed Dec. 1e, 1922 s J5 2f I" l Z'g 27V l I 3mm/tow $7/ I Zaf af y/a/ Maesses y .B- 'aZZ/m Patented Feb. l0, 1925.

UNITED STATES PATENT OFFICE.

EDGAR TAYLOR AND ANDREW B. COLLINS, OF ZARK, ARKANSAS; SAID COLLINS AS-f SIGNOR TO SATB TAYLOR.

INCLINO'METER.

Application filed Beceniber 16, 1922. Serial No. 607,327.

To all whom t may conce/m.'

Be it known thatwe, EDGAR TAYLOR and ANDREW B. COLLINS, citizens of the United States, residing at Ozark, in the county of Franklin and State of Arkansas, have invented certain new and useful Improvements in lnclinometers, of which the following is a specification.

This invention relates to measuring instruments and has special reference to an inclinorneter.

More particularly the invention relates to an inclinometer attachment peculiarly adapted for use in connection with any straight edge or the like.

One important object of the invention is to improve the general construction of devices of this character wherein the level bubble employed may` be shifted to various angular positions with relation to the straight edge and there held by spring friction.

i A third important object of the invention is to provide improved means for mounting the movable level tube in such an instrument. y

With the above and other objects in view as will be hereinafter apparent, the invention consists in general of certain novel details of construction and combinations of parts hereinafter fully described, illustrated in the accompanying drawings and specilically claimed.

In the accompanying drawings, like characters of reference indicate like parts in the several views, and

Figure l is a face view of an inclinometer constructed in accordance with this invention.

Figure 2 is a section on the line 2-2 of Figure 1.

Figure 3 is a section on the line 3 3 of Figure 1.

In carrying out this invention there is provided a base 10 preferably of metal or the like and depending from this base are spaced flanges 11 and 12. The flange 12 is provided with a boss 13 wherethrough passes a clamping screw 14 having-a knurled head 15 carried by this base, and preferably formed integral therewith, is a casing or box 16 of substantially cylindrical form and closed at the back as shown at 17. The front of this casing is provided with a raobet 13 and on the face of this rabbet are graduations 19 as best seen in Figure 1. Extending rearwardly from the back 17 is a boss 20 having a frusto-conical opening 21 which is surrounded by an annular channel 22. Through this frusto-conical opening extends a truste-conical stem 23 which projects rearwardly from a bubble tube container 24 holding the bubble tube 25, the center of the latter being exposed through a window opening 26. This bubble tube is held in position by caps 27 at each end of the tube 24 and each of these caps is provided with an index or pointer 28 extended close to the graduations 19 so that the position of the bubble tube may be readily determined. On the end of the stem 23 is a knurled nut 29 which is secured thereon byv `means of a screw 30 and washer 31. Under this knurled head is located a spring 32, the forward end of which is received in the annular recess 22.

Now it will beobserved that by reason of the frusto conical t of the stem 23 the latter is accurately centered, and that the spring 32 serves to hold this stem properly in positionwhile at the Sametime causing sullicient frictional engagement to prevent accidental shifting of the bubble tube 24 on its axis. Thus when the inclinometer is applied to a straight edge, as at S, and the bubble tube properly set, the device may be handled without fear of changing the setting accidentally. Furthermore, it is obvious that by means vof the knurled nut 29 the bubble tube may be readily turned, a

slight pressure inward of this nut freeing the grip of the frusto-conical opening on the stem 23.

There has thus been provided a simple and etticient device of the kind described and for the purpose specified.

It is obvious that minor changes may be made in the form and construction of the invention without departing from the material spirit thereof. It is not, therefore, desired to confine the invention to the exact form herein shown and described but it is desired to include all such as properly come within the scope claimed.

Having thus described the invention what is claimed as new, is

An inclinometer comprising a cylindrical casing having a closed back provided with a centrally disposed boss having an axially arranged frusto conical opening and an anmadly holding the tube support in an adjustedpostionn seid easing,h there being gruduzitions on' the casing, andndcatlng members carried directly by the terminals oit the tube container for cooperation .with said greduatons In testimony whereof We atx our sgna- 20 tures in presence ot' two Witnesses.

EDGAR TAYLOR. ANDRE B. COLLINS. Witnesses:

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